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<?php // Benchmark using GLOBAL variables $startTime = microtime(true); for ($i = 0; $i < 10000; $i++) { global $myVar; $myVar = $i; } $endTime = microtime(true); $globalTime = $endTime - $startTime; // Benchmark using a function $startTime = microtime(true); function setVar($value) { return $value; } for ($i = 0; $i < 10000; $i++) { $myVar = setVar($i); } $endTime = microtime(true); $functionTime = $endTime - $startTime; echo "GLOBAL: $globalTime seconds\n"; echo "FUNCTION: $functionTime seconds\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
2 jumps found. (Code = 44) Position 1 = 11, Position 2 = 6
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 28
Branch analysis from position: 28
2 jumps found. (Code = 44) Position 1 = 30, Position 2 = 23
Branch analysis from position: 30
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 23
2 jumps found. (Code = 44) Position 1 = 30, Position 2 = 23
Branch analysis from position: 30
Branch analysis from position: 23
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 11, Position 2 = 6
Branch analysis from position: 11
Branch analysis from position: 6
filename:       /in/D2WrI
function name:  (null)
number of ops:  45
compiled vars:  !0 = $startTime, !1 = $i, !2 = $myVar, !3 = $endTime, !4 = $globalTime, !5 = $functionTime
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'microtime'
          1        SEND_VAL                                                 <true>
          2        DO_ICALL                                         $6      
          3        ASSIGN                                                   !0, $6
    5     4        ASSIGN                                                   !1, 0
          5      > JMP                                                      ->9
    6     6    >   BIND_GLOBAL                                              !2, 'myVar'
    7     7        ASSIGN                                                   !2, !1
    5     8        PRE_INC                                                  !1
          9    >   IS_SMALLER                                               !1, 10000
         10      > JMPNZ                                                    ~11, ->6
   10    11    >   INIT_FCALL                                               'microtime'
         12        SEND_VAL                                                 <true>
         13        DO_ICALL                                         $12     
         14        ASSIGN                                                   !3, $12
   11    15        SUB                                              ~14     !3, !0
         16        ASSIGN                                                   !4, ~14
   14    17        INIT_FCALL                                               'microtime'
         18        SEND_VAL                                                 <true>
         19        DO_ICALL                                         $16     
         20        ASSIGN                                                   !0, $16
   20    21        ASSIGN                                                   !1, 0
         22      > JMP                                                      ->28
   21    23    >   INIT_FCALL                                               'setvar'
         24        SEND_VAR                                                 !1
         25        DO_FCALL                                      0  $19     
         26        ASSIGN                                                   !2, $19
   20    27        PRE_INC                                                  !1
         28    >   IS_SMALLER                                               !1, 10000
         29      > JMPNZ                                                    ~22, ->23
   24    30    >   INIT_FCALL                                               'microtime'
         31        SEND_VAL                                                 <true>
         32        DO_ICALL                                         $23     
         33        ASSIGN                                                   !3, $23
   25    34        SUB                                              ~25     !3, !0
         35        ASSIGN                                                   !5, ~25
   27    36        ROPE_INIT                                     3  ~28     'GLOBAL%3A+'
         37        ROPE_ADD                                      1  ~28     ~28, !4
         38        ROPE_END                                      2  ~27     ~28, '+seconds%0A'
         39        ECHO                                                     ~27
   28    40        ROPE_INIT                                     3  ~31     'FUNCTION%3A+'
         41        ROPE_ADD                                      1  ~31     ~31, !5
         42        ROPE_END                                      2  ~30     ~31, '+seconds%0A'
         43        ECHO                                                     ~30
         44      > RETURN                                                   1

Function setvar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/D2WrI
function name:  setVar
number of ops:  3
compiled vars:  !0 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   RECV                                             !0      
   17     1      > RETURN                                                   !0
   18     2*     > RETURN                                                   null

End of function setvar

Generated using Vulcan Logic Dumper, using php 8.0.0


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143.15 ms | 1433 KiB | 15 Q